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Pfaff, Johann Wilhelm A. in correspondent 
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From:
Sir John Herschel
To:
Johann Wilhelm A. Pfaff
Date:
20] October [1823
Source of text:
RS:HS 19.10
Summary:

Heard from H. C. Schumacher that JP plans to translate William Herschel's works into German. Sends five bound volumes, three papers, and list of papers printed in R.S.P.T. Promises to send biography of William Herschel when it is finished.

Contributor:
John Herschel Project
From:
Johann Wilhelm A. Pfaff
To:
Sir John Herschel
Date:
[13 December 1823]
Source of text:
RS:HS 13.378
Summary:

Is collecting and translating William Herschel's writings, projected for 4 volumes, the first one already being in press. Requests JH to provide additional biographical information about his father for one of the later volumes.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Johann Wilhelm A. Pfaff
Date:
[30 June 1824]
Source of text:
RS:HS 13.379 & 20.182
Summary:

Directs JP to additional sources of biographical information about William Herschel [see JP's 1823-12-13], and comments on some other details of JP's letter.

Contributor:
John Herschel Project
From:
Johann Wilhelm A. Pfaff
To:
Sir John Herschel
Date:
[24 December 1827]
Source of text:
RS:HS 13.380
Summary:

Thanks JH for his assistance with edition of William Herschel's writings [see JH's 1824-6-30]. JP indicates volume two is ready for submission to printer.

Contributor:
John Herschel Project